Ventilator for mattresses



NMde1- e. H. HILDRETH.

VENTILATOR FOB. MATTRESSES. No. 460,439. Patented Sept. 29, 1891.

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UNITED STATES PATENT OFFICE.

GEORGE H. HILDRETH, OFOINCINNATI, OHIO.

VENTILATOR FOR IVIATTRESSES.

SPECIFICATION forming part of Letters Patent No. 460,439, datedSeptember 29, 1891.

Application filed June 23, 1891. Serial No. 397,187. (No model.)

To all whom it may concern:

Be it. known that I, GEORGE H. HILDRETH, of Cincinnati, in the county ofHamilton and State of Ohio, have invented a new and Im proved Ventilatorfor Mattresses, of which the following is a specification, referencebeing had to the annexed drawings, forming apart thereof, in Which-Figure l is a perspective View of a portion of a mattress to which myinvention has been applied. Fig. 2 is aplan view. Fig. 3 is aperspectiveView of one of the ventilators, and Fig. 4 is a plan view of the same.

Similar letters of reference indicate corresponding parts in' all theviews.

The object of my invention is to provide a simple and efficientventilator for application to mattresses to cause a change of air withinthe mattress.

My invention consists in a perforated rubber tube furnished with ametallic top and provided with a perforated cover, the said tube beingdesigned for insertion in the body of the mattress from opposite sidesat the points Where the mattresses are usually tufted, the ventilatorsbeing held in place by the twine used in tufting the mattress.

The ventilator A is formed of a rubber tube a, closed at one end andopen atthe otherand provided with perforations b in its sides. The upperend of the tube ct is furnished with a collar c, provided with atransverse slotd, and to the end of the tube is fitted a perforatedcover e, of metal or other suitable material, for excludingvermin.AWasherB,of leather or analogous material, is placed under the collar c,and the tubes are inserted in the mattress from opposite sides, as shownin Fig. 1, and are held in place by the twine f, which passes throughthe mattress over the end of one of the ventilators in the slot d, andthence back through the mattress and over the end of the oppositeventilator in the same Way, being` afterward fastened. The tube a is ofsuicient length to reach through the layer of cotton which is commonlyplaced over the curledhair filling of the mattress. The tubes a, beingflexible, do not interfere in any way with the efficiency of themattress.

In case Vthe ventilators are not placed at every point of the tuftingthe mattress is stitched or tufted With twine in the usual way' at thepoints Where the ventilators are omitted.

Having thus described my invention, I claim as new and desire to secureby Letters Patentf l. A mattress-ventilator formed'of a flexibleperforated tube closed at one end` provided Ywith a transversely-slottedcollar at the opposite end, and aperforated cover, substantially asspecified.

2. A mattress-ventilator formed of a Iiexible perforated tube closed atone end, provided With a'transversely-slotted collar at the oppositeend, a perforated cover, and a washer fitted to the tube, substantiallyas specified.

GEO. H. HILDRETH.

XVitnesses:

J. F. STREETER, WM. H. MOUREY.

